Differences

This shows you the differences between two versions of the page.

--- d_manual:d11 [09/05/2025 06:49] – created Lt. Kirk
+++ d_manual:d11 [09/05/2025 07:31] (current) – Lt. Kirk
@@ Line 3: / Line 3: @@
 =====D-11 SCBA and Related Equipment======
 ===Maintenance Manual===
-==Date Revised: 07/01/2018==
+==Date Revised: 08/18/2025==
 <sub>Last Modified: ~~LASTMOD~~ </sub>
@@ Line 11: / Line 11: @@
 ----
+===Visual Inspection of Cylinders (SCBA, 02 and SCUBA)===
-=====BREATHING AIR AND RELATED EQUIPMENT=====
+SCBA, OXYGEN or SCUBA cylinders carried on the air wagons or on other apparatus should be visually inspected daily, using the 0700 Hour Check procedure, detailed later in this procedure. Certain problems or conditions, as noted in the 0700 check, would be cause to place a suspect cylinder out of service. Faulty equipment should be depressurized and sent to the Maintenance Bureau with SCBA Equipment Repair Form 300-16 for SCBA equipment or Repair Form 300-15 for OXYGEN and SCUBA cylinders as found on your station dashboard, within the TFRDweb website [[https://www.tfrdweb.com/bureau-forms/|LINK]]
-\\
-====Visual Inspection of Cylinders (SCBA, 02 and SCUBA)====
-SCBA, OXYGEN or SCUBA cylinders carried on the air wagons or on other apparatus should be visually inspected daily, using the **0700 Hour Check** procedure, detailed below, Certain problems or conditions, as noted in the 0700 check, would be cause to place a suspect cylinder out of service. Faulty equipment should be depressurized and sent to the Maintenance Bureau with SCBA Equipment Repair Form 300-16 for SCBA equipment or Repair Form 300-15 for OXYGEN and SCUBA cylinders. [[https://www.tfrdweb.com/bureau-forms/|LINK]]
 **WARNING: If a high pressure cylinder is known to have been subjected to any unusual treatment, accident, or condition, it should be immediately placed out of service, depressurized and sent to the Maintenance Bureau.**
 \\
-====Procedures for Filling SCBA Cylinders====
+===Procedures for Filling SCBA Cylinders===
-  * Officers on duty at Stations #3, #4, #5, #6, #15 and #18 are responsible for assuring that proper procedures are being used for filling air cylinders.
+  * Officers on duty at Stations #3, #4, #5, #6, and #18 are responsible for assuring that proper procedures are being used for filling air cylinders.
   * Verify the rated capacity of cylinders to be filled.
@@ Line 30: / Line 27: @@
   * Before filling cylinders, you must do a visual inspection. Check the hydrostatic test date and the rated capacity in psi. __DO NOT FILL A CYLINDER THAT IS OUT OF DATE FROM THE LAST HYDROSTATIC TEST DATE (See
-"COMPRESSED GAS CYLINDER SERVICE LIFE AND HYDROSTATIC TEST INTERVAL" (table below)__. Steel, aluminum and gray carbon fiber cylinders
+"COMPRESSED GAS CYLINDER SERVICE LIFE AND HYDROSTATIC TEST INTERVAL" (table below)__.
-are tested every five (5) years. For air cylinders, this information should be on a label attached to the body of the cylinder. For oxygen and SCUBA cylinders, this information is stamped near the neck of the cylinder.
+Steel, aluminum and gray carbon fiber cylinders are tested every five (5) years. For air cylinders, this information should be on a label attached to the body of the cylinder. For oxygen and SCUBA cylinders, this information is stamped near the neck of the cylinder.
 ^  COMPRESSED GAS CYLINDER - SERVICE LIFE AND HYDROSTATIC TEST INTERVAL  ^^^^
 ^  CONSTRUCTION  ^  TYPE  ^  HYDRO-TEST EVERY  ^  SERVICE LIFE  ^
-|STEEL |SCUBA,OXYGEN, ETC.| 5 YEARS |INDEFINITE*|
+|STEEL |SCUBA, OXYGEN, ETC.| 5 YEARS |INDEFINITE*|
 |ALUMINUM| SCBA, SCUBA, OXYGEN, ETC. |5 YEARS |INDEFINITE*|
-|CARBON FIBER, COMPOSITE| SCBA GRAY |5 YEARS |15 YEARS|
+|CARBON FIBER COMPOSITE| SCBA GRAY |5 YEARS |15 YEARS|
 >* INDEFINITE AS LONG AS CYLINDER PASSES VISUAL INSPECTION AND HYDROSTATIC TESTING AT PRESCRIBED INTERVALS
-  * Open the valve of the cylinder to be filled briefly (approximately 1/4 turn) to blow out any foreign material in the valve. Do the same with the compressor fill valve while holding the hose connector. **CAUTION:** Do not discharge compressed air toward any person. Make sure the bleeder valve on the filling station hose is closed. Connect fill hose to air cylinder valve and **HAND TIGHTEN ONLY**. Open cylinder. Open valve on cascade cylinder #1.
+  * Open the valve of the cylinder to be filled briefly (approximately 1/4 tum) to blow out any foreign material in the valve. Do the same with the compressor fill valve while holding the hose connector. **CAUTION:** Do not discharge compressed air toward any person. Make sure the bleeder valve on the filling station hose is closed. Connect fill hose with quick connect to air cylinder valve. Open cylinder, close compartment door to cascade system then open valve on cascade system to fill SCBA.
-  * If needed, adjust the pressure regulator on the control fill panel to the proper pressure by dropping the pressure 500 psi below the pressure needed, then adjust upward to the correct pressure. Never adjust hand wheel of pressure regulator fully in or out as this will damage plastic threads and/or seat, placing the compressor out-of-service.
+  * **DO NOT** adjust the pressure regulator on the control fill panel, this valve is preset to 4500PSI and does not need to be adjusted. Never adjust hand wheel of pressure regulator fully in or out as this will damage plastic threads and/or seat, placing the compressor out-of-service.
-  * Open the fill control valve slowly. The recommended fill time should not exceed __500 psi per minute__. If they are filled more quickly, the air and cylinder will heat up and the cylinder will not be full, when cool (when air cools, its volume is reduced).If #1 cascade cylinder does not fill the cylinder, close cascade valve #1 and open cascade valve #2. Proceed until the cylinder is filled to the rated capacity.
+  * Open the fill control valve slowly. The recommended fill time should not exceed 500 psi per minute. If the SCBA is filled too rapidly, the air and cylinder will heat up and the cylinder will not be full, when cool (when air cools, its volume is reduced). If #1 cascade cylinder does not fill the cylinder, close cascade valve# l and open cascade valve #2. Proceed until the cylinder is filled to the rated capacity.
   * Close air fill control valve and air cylinder valve. These fill stations have bleed valves for relieving pressure from the fill connections. Bleed off pressure in the fill hose and then remove cylinder.
-  * When filling two or more cylinders at the same time, the above procedure will be used while gating air fill control valves according to residual pressure in the cylinders being filled. __Never__ try to fill cylinders with different pressure capacities at the same time.\\ \\
+  * When filling two or more cylinders at the same time, the above procedure will be used while gating air fill control valves according to residual pressure in the cylinders being filled. __**Never**__ try to fill cylinders with different pressure capacities at the same time.\\ \\
-    * **NOTE:** TFRD compressors are rated at 5000-6000 psi. **ALL** compressors shall be regulated to a maximum of 4500 psi output for filling SCBA cylinders.\\ \\
-    * Only Water Rescue Team members are authorized to fill S.C.U.B.A. cylinders.
+**NOTE:** TFRD compressors are rated at 5000-6000 psi.
+**ALL compressors shall be regulated to a maximum of 4500 psi output for filling SCBA cylinders.**
+**Only Water Rescue Team members are authorized to fill S.C.U.B.A. cylinders.**
 \\
-====SCBA Air Compressor====
+===SCBA Air Compressor===
   * Check oil level. Reading should be between indicators at bottom of dipstick. Don't overfill. One cupful will raise the low-level reading to overfill.
@@ Line 67: / Line 68: @@
 \\
-====SCBA 0700 Hour Check====
+===SCBA 0700 Hour Check===
-SCBA equipment must pass the tests listed below before use. If the equipment fails to meet any of the tests, the condition must be corrected before using the equipment. Observed deficit in the function of any component of the SCBA equipment will necessitate that component’s removal from service. Faulty equipment should be sent to the Fire Maintenance Bureau with a [[ https://www.tfrdweb.com/bureau-forms/|SCBA Equipment Repair form 300-16]]. Spare harnesses are available on the air wagons or through the Fire Maintenance Bureau.
+SCBA equipment must pass the tests listed below before use. If the equipment fails to meet any of the tests, the condition must be corrected before using the equipment. Observed deficit in the function of any component of the SCBA equipment will necessitate that component's removal from service. Faulty equipment should be sent to the Fire Maintenance Bureau with a [[ https://www.tfrdweb.com/bureau-forms/|SCBA Equipment Repair form 300-16]]. Spare harnesses are available on the air wagons or through the Fire Maintenance Bureau.
 \\
-====Air Cylinder Inspection====
+===Air Cylinder Inspection===
 Inspect cylinders before use, and check for problems or conditions detailed as follows. If any are present, drain air and send to Maintenance Bureau. **DO NOT REFILL**.
@@ Line 79: / Line 80: @@
   * Service life/date last hydro-tested (see table above)
-  * Cuts or abrasions
   * Make sure cylinder knob is not bent and turns easily
@@ Line 112: / Line 111: @@
 \\
-====Facepiece Inspection 0700====
+===Facepiece Inspection 0700===
   * Inspect the facepiece for rubber deterioration, dirt, cracks, tears, holes, or tackiness.
-  * Check the head straps for breaks, loss of elasticity, missing buckles or straps.
+  * Check the head harness and straps for breaks, loss of elasticity, signs of wear and missing buckles or straps
-  * Check the straps for signs of wear.
+  * Inspect the lens for cracks, any deep scratches, and a tight seal with the facepiece rubber. Any signs of compromised lens the fire shop must be notified.
-  * Inspect the lens for cracks, any deep scratches, and a tight seal with the facepiece rubber.
+  * The exhalation valve must be clean and operate easily.  Make sure the face piece is rinsed toughly after cleaning to avoid any built-up residue to create a problem.
-  * The exhalation valve must be clean and operate easily. Reach into the facepiece. Push and release the valve stem several times. The valve must move off the seat and return when released.
+  * For inhalation valve test, hold facepiece up to your face, put your hand on the inlet connection, breathe in and hold for 10 seconds. The facepiece should collapse to your face for a good, tight seal.
-  * To check the exhalation valve, hold facepiece up to your face, breathe in and out quickly and sharply a few times. Listen for the valve disc to flutter. For inhalation valve test, hold facepiece up to your face, put your hand on the inlet connection, breathe in and hold for 10 seconds. The facepiece should collapse to your face for a good, tight seal.
+  * Inspect the facepiece coupling for damage.
-  * Inspect the facepiece coupling for damage. Also check to be sure the valve spider and valve disc are present.
-  * Observe the operation of the I-HUD in the following steps.
 \\
-====MSA Firehawk M7 I-HUD Light Patterns====
+===MSA G-1 HUD (heads-Up Display) Light Patterns===
-The I-HUD has lights on the unit that indicates different functions and measurements.
+Observe the operation of the HUD device (Heads-Up Display) in the following steps:
-The following is a description of each:
+The HUD has lights on the unit that indicate different functions and measurements. The following is a description of each:
 ^  RIGHT SIDE LED’s  ^^
-|3 green LED’s| Air cylinder tank is full to 3/4 full|
+|**4 Green LED’s**| Air cylinder tank has 75-100%|
-|2 green LED’s| Air cylinder tank is 3/4 to 1/2 full|
+|**3 Green LED’s**| Air cylinder tank has 50-74%|
-|2 flashing yellow LED’s| Air cylinder tank is 1/2 to 1/4 full|
+|**2 Yellow LED’s**| Air cylinder tank has 34-49%|
-|1 flashing red LED| Air cylinder tank is 1/4 full to empty|
+|**1 Red LED**| Air cylinder tank has 0-33%|
 | ||
 ^  LEFT SIDE LED’s  ^^
-|Flashing yellow LED — low battery| Single flash is I-Hud, Double flash is Module|
+|**Red for the following:**\\ {{:d_manual:hud-red.png?nolink&150|}}| •Primary Thermal Alarm - Flashing\\ •PASS Pre-Alarm - Flashing\\ •PASS Full Alarm - Solid\\ •PASS Manual Activation - Solid\\ •Electronics Failure - Flashing|
-|Single orange LED| PASS Pre-Alarm|
+|**Blue flashing for the following:**\\ {{:d_manual:hud-blue.png?nolink&150|}}| •Potential Thermal Alarm|
-|RED and Orange LED| Evacuate the structure|
+|**Yellow flashing for the following:**\\ {{:d_manual:hud-yellow.png?nolink&150|}}| •Low Battery Warning Condition|
 \\
-====Air Cylinder and Harness Pressure Gauges====
+===Air Cylinder and Harness Pressure Gauges===
-  * Slide a full air cylinder into the metal cylinder band. Tighten the latch wing to secure the cylinder. Connect the alarm bell coupling nut to cylinder and hand tighten.
-  * Make sure the shut off button on the second stage is pushed in.
+  * Slide a full air cylinder into the metal cylinder band from the top or bottom, secure the dovetail assembly on the back of the air cylinder into the slot in the back-frame. Connect the quick connect coupling nut to the cylinder.
-  * Make sure there is a minimum of 4000 psi in the high-pressure air cylinder. Open the cylinder valve fully to pressurize system, then close the cylinder valve and watch the harness pressure. If the needle drops more than __100 psi in 10 seconds__, there is a leak,
+  * Make sure there is a minimum of 4000 psi in the high-pressure air cylinder. Open the cylinder valve fully to pressurize system, then close the cylinder valve and watch the harness pressure. If the needle drops more than 100 psi in 10 seconds, there is a leak.
   * Open the cylinder valve fully to pressurize system.
-  * Be sure you can see both the gauge needles and dial face clearly through the lens. Also be sure the gauge is not bent or damaged.
+  * Be sure you can see both gauge needles, one on the air cylinder and one on the control module. Also, be sure the gauge is not bent, damaged and in good working order.
-  * Verify that the difference between the regulator gauge and the gauge on the cylinder is no more than 450 psi. If the difference is more than 450 psi, try a different bottle before taking the SCBA out of service.
+  * Verify that the difference between the control module gauge and the gauge on the cylinder is no more than 450 psi. If the difference is more than 450 psi, try a different bottle before taking the SCBA out of service. (No more than 10% difference)
   * Leave PASS device motionless to check for three (3) stages of pre-alarm and final full alarm.
@@ Line 167: / Line 161: @@
   * Open the by-pass knob fully. Listen for air flow. Close the by-pass knob.
-  * Bleed the main line slowly. Watch the pressure gauge and note when the audible alarm sounds. This should be at approximately 1050 psi.
+  * Bleed the main line slowly. Watch the pressure gauge and note when the audible alarm sounds. This should be at approximately 1575 psi.
-  * Make sure the low air pressure warning on PASS is visible and audible.
+  * Make sure the low air pressure warning on the control module is both visible and audible.
   * Inspect the harness gauge hose for any visible damage.
-  * Check battery level on Control Module
+  * Check battery level on Control Module by pressing and holding green button until battery icon appears on screen.
-    * Anything below 1/4 replace batteries. 4- C cell batteries
+    * When there are two (2) “bars” remaining the lithium-ion battery will need to be changed.
-  * Tag in to system.\\ \\
-    * Hold green button until ‘TAG’ appears in the display
-    * While ‘TAG' is displayed, position the ID tag within 2 inches of the control module.
-    * Tag procedure is complete when ‘OK’ briefly appears within 2 seconds.
 \\
-====Audible Alarm====
+===Audible Alarm===
   * Check that the bell is in the proper alignment and on tightly.
@@ Line 188: / Line 177: @@
   * If the bell is loose, remove the harness from service.
-  * Unscrew the Audi-Alarm coupling nut from the cylinder valve. Inspect the coupling nut for thread damage. Also be sure there is an O-ring, and that it is not damaged. It is hand-tightened and should not require tools.
+  * Inspect the quick coupling and the quick connect nut attached to the air cylinder making sure the coupling and nut are clean, free of debris and there is no visible damage. Also, be sure there is an O-ring, and that it is not damaged. It is hand-tightened and should not require tools.
 \\
-====High Pressure Hose====
+===High Pressure Hose===
-  * Check the high pressure hose between first stage regulator and the pass device.
+  * Check all high-pressure hose, looking for cuts or abrasions. If present, have the Fire Maintenance Bureau replace the hose.
-  * Check the high-pressure hose between the alarm bell and the first-stage regulator. Look for cuts or sever abrasions. If present, have the Fire Maintenance Bureau replace the hose.
 \\
@@ Line 202: / Line 189: @@
   * Straps open.
   * Adjust waist strap.
-  * Check buckle.
+  * Check buckles (chest and waist).
   * Check cylinder clamp.
   * Check chest straps.
+  * Check lumbar pad making sure pad moves freely and is able to be safely locked in all three positions.
+  * Make sure mask mounted regulator (MMR) can be securely locked into holster on waist strap.
 \\
-====General====
+===General===
   * Check for cleanliness and dryness.
@@ Line 213: / Line 202: @@
   * Any deficit in the function of a mask will necessitate the removal of the mask from service.
   * Check all high pressure hoses for loose fittings.
-  * Check for O-ring on second stage inlet-to-facepiece connection.
+  * Check for O-ring on MMR.
 \\
-====Cleaning and Disinfecting Facepiece====
+===Cleaning and Disinfecting Facepiece===
-  * Clean and disinfect the facepiece.
+  * Thoroughly wash the facepiece and nose cup in mild cleaning solution (NDC provided by the fire shop). A soft brush or sponge can be used to scrub the soiled facepiece.
-  * **It is recommended, but not necessary to remove the HUD.**
+  * Allow the facepiece to air-dry only. Using any type of heat source, including direct sunlight, will deteriorate the rubber.
-    * Remove the mask-mounted regulator from the facepiece.
-    * If the facepiece is equipped with a voice amplifier, it should be removed before washing the facepiece.
-    * Thoroughly wash the facepiece and nose cup in mild cleaning solution. A soft brush or sponge can be used to scrub the soiled facepiece.
-    * Allow the facepiece to air-dry only. Using any type of heat source, including direct sunlight, will deteriorate the rubber.
-  * Operate the exhalation valve by hand to be sure it works properly.
-  * Make sure that the facepiece regulator inlet is clean.
 \\
-====Cleaning the Harness====
+===Cleaning the Harness===
-Check the harness pressure gauge and, if necessary, release any pressure trapped in the system by opening the bypass knob. Loosen and remove the Audi-Alarm coupling nut from the cylinder. Lift and turn the latch wing to loosen the cylinder band and latch and slide the cylinder out.
+Check the harness pressure gauge and, if necessary, release any pressure trapped in the system by opening the bypass knob. Remove the quick connect coupling from the air-cylinder. Squeeze both button’s and lift to unlock the clamp down latch, then slide the cylinder out.
-  * Wipe off all surface dirt with a sponge dampened (not soaking) in mild cleaning solution. Rinse the sponge and squeeze it dry.
+  * Wipe off all surface dirt with a sponge dampened (not soaking) in mild cleaning solution such as NDC. Rinse the sponge and squeeze it dry.
-  * Work up a thick lather on the sponge with mild soap. Thoroughly wash the harness with the lathered sponge, being careful to use the lather only. Do not allow water to enter the second stage regulator.
+  * Do not allow water to enter the second stage regulator.
   * Wipe dry with a clean cloth.
@@ Line 244: / Line 225: @@
 \\
-====Cleaning the Cylinder====
+===Cleaning the Cylinder===
-Breathing apparatus cylinders should be recharged as soon as possible. **Cylinders should be stored completely filled only.**
+Air cylinders should be recharged as soon as possible.
+**Cylinders should be stored completely filled only.**
   * Clean exterior with mild soap solution. Assure that cylinder interior remains dry.
@@ Line 254: / Line 237: @@
   * If damage is found, drain the air from the cylinder and place the cylinder out of service. Send to the Maintenance Bureau with [[https://www.tfrdweb.com/bureau-forms/|form 300-16]].
+\\
 ----
 See Also:\\